With our country entering an aging society, ______ the retirement age is probably unavoidable.
#88616
A
having delayed
B
delaying
C
being delayed
D
to be delayed
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The building ______ will be completed in two months. 
#94372
A
painting
B
being painted
C
to have painted
D
painted
Those  ___ to go to the exhibition should inform the office.
#98027
A
not wanting
B
who not want
C
not wanted
D
are not want
he food ______ us can last a year or so. 
#97861
A
supplied
B
supplying to 
C
provided for
D
provided with